In the midst of the /. discussion on the Gnome2.2 release, a hilarious link to the Stop Oppressive Gardening site caught my eye. Similar to the House Elf Liberation Front (or whatever it was from Harry Potter 4), but different.
There are sections on what to do if you see a gnome in captivity, email alerts, and an impressive liberation force. These people are I fear, a force to be reconned with.